2011222212102 has 12 divisors (see below), whose sum is σ = 4357648126260. Its totient is φ = 670407404028.

The previous prime is 2011222212101. The next prime is 2011222212107. The reversal of 2011222212102 is 2012122221102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 111734567339 = 2011222212102 / (2 + 0 + 1 + 1 + 2 + 2 + 2 + 2 + 1 + 2 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011222212101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55867283652 + ... + 55867283687.

It is an arithmetic number, because the mean of its divisors is an integer number (363137343855).

Almost surely, 2^{2011222212102} is an apocalyptic number.

2011222212102 is an abundant number, since it is smaller than the sum of its proper divisors (2346425914158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011222212102 is a wasteful number, since it uses less digits than its factorization.

2011222212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111734567347 (or 111734567344 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2011222212102 its reverse (2012122221102), we get a palindrome (4023344433204).

The spelling of 2011222212102 in words is "two trillion, eleven billion, two hundred twenty-two million, two hundred twelve thousand, one hundred two".